/* $NetBSD: targ.c,v 1.25 2002/01/27 01:50:55 reinoud Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1993 * The Regents of the University of California. All rights reserved. * Copyright (c) 1989 by Berkeley Softworks * All rights reserved. * * This code is derived from software contributed to Berkeley by * Adam de Boor. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifdef MAKE_BOOTSTRAP static char rcsid[] = "$NetBSD: targ.c,v 1.25 2002/01/27 01:50:55 reinoud Exp $"; #else #include #ifndef lint #if 0 static char sccsid[] = "@(#)targ.c 8.2 (Berkeley) 3/19/94"; #else __RCSID("$NetBSD: targ.c,v 1.25 2002/01/27 01:50:55 reinoud Exp $"); #endif #endif /* not lint */ #endif /*- * targ.c -- * Functions for maintaining the Lst allTargets. Target nodes are * kept in two structures: a Lst, maintained by the list library, and a * hash table, maintained by the hash library. * * Interface: * Targ_Init Initialization procedure. * * Targ_End Cleanup the module * * Targ_List Return the list of all targets so far. * * Targ_NewGN Create a new GNode for the passed target * (string). The node is *not* placed in the * hash table, though all its fields are * initialized. * * Targ_FindNode Find the node for a given target, creating * and storing it if it doesn't exist and the * flags are right (TARG_CREATE) * * Targ_FindList Given a list of names, find nodes for all * of them. If a name doesn't exist and the * TARG_NOCREATE flag was given, an error message * is printed. Else, if a name doesn't exist, * its node is created. * * Targ_Ignore Return TRUE if errors should be ignored when * creating the given target. * * Targ_Silent Return TRUE if we should be silent when * creating the given target. * * Targ_Precious Return TRUE if the target is precious and * should not be removed if we are interrupted. * * Debugging: * Targ_PrintGraph Print out the entire graphm all variables * and statistics for the directory cache. Should * print something for suffixes, too, but... */ #include #include #include "make.h" #include "hash.h" #include "dir.h" static Lst allTargets; /* the list of all targets found so far */ #ifdef CLEANUP static Lst allGNs; /* List of all the GNodes */ #endif static Hash_Table targets; /* a hash table of same */ #define HTSIZE 191 /* initial size of hash table */ static int TargPrintOnlySrc __P((ClientData, ClientData)); static int TargPrintName __P((ClientData, ClientData)); static int TargPrintNode __P((ClientData, ClientData)); #ifdef CLEANUP static void TargFreeGN __P((ClientData)); #endif static int TargPropagateCohort __P((ClientData, ClientData)); static int TargPropagateNode __P((ClientData, ClientData)); /*- *----------------------------------------------------------------------- * Targ_Init -- * Initialize this module * * Results: * None * * Side Effects: * The allTargets list and the targets hash table are initialized *----------------------------------------------------------------------- */ void Targ_Init () { allTargets = Lst_Init (FALSE); Hash_InitTable (&targets, HTSIZE); } /*- *----------------------------------------------------------------------- * Targ_End -- * Finalize this module * * Results: * None * * Side Effects: * All lists and gnodes are cleared *----------------------------------------------------------------------- */ void Targ_End () { #ifdef CLEANUP Lst_Destroy(allTargets, NOFREE); if (allGNs) Lst_Destroy(allGNs, TargFreeGN); Hash_DeleteTable(&targets); #endif } /*- *----------------------------------------------------------------------- * Targ_List -- * Return the list of all targets * * Results: * The list of all targets. * * Side Effects: * None *----------------------------------------------------------------------- */ Lst Targ_List () { return allTargets; } /*- *----------------------------------------------------------------------- * Targ_NewGN -- * Create and initialize a new graph node * * Results: * An initialized graph node with the name field filled with a copy * of the passed name * * Side Effects: * The gnode is added to the list of all gnodes. *----------------------------------------------------------------------- */ GNode * Targ_NewGN (name) char *name; /* the name to stick in the new node */ { register GNode *gn; gn = (GNode *) emalloc (sizeof (GNode)); gn->name = estrdup (name); gn->uname = NULL; gn->path = (char *) 0; if (name[0] == '-' && name[1] == 'l') { gn->type = OP_LIB; } else { gn->type = 0; } gn->unmade = 0; gn->made = UNMADE; gn->flags = 0; gn->order = 0; gn->mtime = gn->cmtime = 0; gn->iParents = Lst_Init (FALSE); gn->cohorts = Lst_Init (FALSE); gn->parents = Lst_Init (FALSE); gn->children = Lst_Init (FALSE); gn->successors = Lst_Init (FALSE); gn->preds = Lst_Init (FALSE); Hash_InitTable(&gn->context, 0); gn->commands = Lst_Init (FALSE); gn->suffix = NULL; gn->lineno = 0; gn->fname = NULL; #ifdef CLEANUP if (allGNs == NULL) allGNs = Lst_Init(FALSE); Lst_AtEnd(allGNs, (ClientData) gn); #endif return (gn); } #ifdef CLEANUP /*- *----------------------------------------------------------------------- * TargFreeGN -- * Destroy a GNode * * Results: * None. * * Side Effects: * None. *----------------------------------------------------------------------- */ static void TargFreeGN (gnp) ClientData gnp; { GNode *gn = (GNode *) gnp; free(gn->name); if (gn->uname) free(gn->uname); if (gn->path) free(gn->path); if (gn->fname) free(gn->fname); Lst_Destroy(gn->iParents, NOFREE); Lst_Destroy(gn->cohorts, NOFREE); Lst_Destroy(gn->parents, NOFREE); Lst_Destroy(gn->children, NOFREE); Lst_Destroy(gn->successors, NOFREE); Lst_Destroy(gn->preds, NOFREE); Hash_DeleteTable(&gn->context); Lst_Destroy(gn->commands, NOFREE); free((Address)gn); } #endif /*- *----------------------------------------------------------------------- * Targ_FindNode -- * Find a node in the list using the given name for matching * * Results: * The node in the list if it was. If it wasn't, return NILGNODE of * flags was TARG_NOCREATE or the newly created and initialized node * if it was TARG_CREATE * * Side Effects: * Sometimes a node is created and added to the list *----------------------------------------------------------------------- */ GNode * Targ_FindNode (name, flags) char *name; /* the name to find */ int flags; /* flags governing events when target not * found */ { GNode *gn; /* node in that element */ Hash_Entry *he; /* New or used hash entry for node */ Boolean isNew; /* Set TRUE if Hash_CreateEntry had to create */ /* an entry for the node */ if (flags & TARG_CREATE) { he = Hash_CreateEntry (&targets, name, &isNew); if (isNew) { gn = Targ_NewGN (name); Hash_SetValue (he, gn); Var_Append(".ALLTARGETS", name, VAR_GLOBAL); (void) Lst_AtEnd (allTargets, (ClientData)gn); } } else { he = Hash_FindEntry (&targets, name); } if (he == (Hash_Entry *) NULL) { return (NILGNODE); } else { return ((GNode *) Hash_GetValue (he)); } } /*- *----------------------------------------------------------------------- * Targ_FindList -- * Make a complete list of GNodes from the given list of names * * Results: * A complete list of graph nodes corresponding to all instances of all * the names in names. * * Side Effects: * If flags is TARG_CREATE, nodes will be created for all names in * names which do not yet have graph nodes. If flags is TARG_NOCREATE, * an error message will be printed for each name which can't be found. * ----------------------------------------------------------------------- */ Lst Targ_FindList (names, flags) Lst names; /* list of names to find */ int flags; /* flags used if no node is found for a given * name */ { Lst nodes; /* result list */ register LstNode ln; /* name list element */ register GNode *gn; /* node in tLn */ char *name; nodes = Lst_Init (FALSE); if (Lst_Open (names) == FAILURE) { return (nodes); } while ((ln = Lst_Next (names)) != NILLNODE) { name = (char *)Lst_Datum(ln); gn = Targ_FindNode (name, flags); if (gn != NILGNODE) { /* * Note: Lst_AtEnd must come before the Lst_Concat so the nodes * are added to the list in the order in which they were * encountered in the makefile. */ (void) Lst_AtEnd (nodes, (ClientData)gn); } else if (flags == TARG_NOCREATE) { Error ("\"%s\" -- target unknown.", name); } } Lst_Close (names); return (nodes); } /*- *----------------------------------------------------------------------- * Targ_Ignore -- * Return true if should ignore errors when creating gn * * Results: * TRUE if should ignore errors * * Side Effects: * None *----------------------------------------------------------------------- */ Boolean Targ_Ignore (gn) GNode *gn; /* node to check for */ { if (ignoreErrors || gn->type & OP_IGNORE) { return (TRUE); } else { return (FALSE); } } /*- *----------------------------------------------------------------------- * Targ_Silent -- * Return true if be silent when creating gn * * Results: * TRUE if should be silent * * Side Effects: * None *----------------------------------------------------------------------- */ Boolean Targ_Silent (gn) GNode *gn; /* node to check for */ { if (beSilent || gn->type & OP_SILENT) { return (TRUE); } else { return (FALSE); } } /*- *----------------------------------------------------------------------- * Targ_Precious -- * See if the given target is precious * * Results: * TRUE if it is precious. FALSE otherwise * * Side Effects: * None *----------------------------------------------------------------------- */ Boolean Targ_Precious (gn) GNode *gn; /* the node to check */ { if (allPrecious || (gn->type & (OP_PRECIOUS|OP_DOUBLEDEP))) { return (TRUE); } else { return (FALSE); } } /******************* DEBUG INFO PRINTING ****************/ static GNode *mainTarg; /* the main target, as set by Targ_SetMain */ /*- *----------------------------------------------------------------------- * Targ_SetMain -- * Set our idea of the main target we'll be creating. Used for * debugging output. * * Results: * None. * * Side Effects: * "mainTarg" is set to the main target's node. *----------------------------------------------------------------------- */ void Targ_SetMain (gn) GNode *gn; /* The main target we'll create */ { mainTarg = gn; } static int TargPrintName (gnp, ppath) ClientData gnp; ClientData ppath; { GNode *gn = (GNode *) gnp; printf ("%s ", gn->name); #ifdef notdef if (ppath) { if (gn->path) { printf ("[%s] ", gn->path); } if (gn == mainTarg) { printf ("(MAIN NAME) "); } } #endif /* notdef */ return (ppath ? 0 : 0); } int Targ_PrintCmd (cmd, dummy) ClientData cmd; ClientData dummy; { printf ("\t%s\n", (char *) cmd); return (dummy ? 0 : 0); } /*- *----------------------------------------------------------------------- * Targ_FmtTime -- * Format a modification time in some reasonable way and return it. * * Results: * The time reformatted. * * Side Effects: * The time is placed in a static area, so it is overwritten * with each call. * *----------------------------------------------------------------------- */ char * Targ_FmtTime (tm) time_t tm; { struct tm *parts; static char buf[128]; parts = localtime(&tm); (void)strftime(buf, sizeof buf, "%k:%M:%S %b %d, %Y", parts); return(buf); } /*- *----------------------------------------------------------------------- * Targ_PrintType -- * Print out a type field giving only those attributes the user can * set. * * Results: * * Side Effects: * *----------------------------------------------------------------------- */ void Targ_PrintType (type) register int type; { register int tbit; #ifdef __STDC__ #define PRINTBIT(attr) case CONCAT(OP_,attr): printf("." #attr " "); break #define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf("." #attr " "); break #else #define PRINTBIT(attr) case CONCAT(OP_,attr): printf(".attr "); break #define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf(".attr "); break #endif /* __STDC__ */ type &= ~OP_OPMASK; while (type) { tbit = 1 << (ffs(type) - 1); type &= ~tbit; switch(tbit) { PRINTBIT(OPTIONAL); PRINTBIT(USE); PRINTBIT(EXEC); PRINTBIT(IGNORE); PRINTBIT(PRECIOUS); PRINTBIT(SILENT); PRINTBIT(MAKE); PRINTBIT(JOIN); PRINTBIT(INVISIBLE); PRINTBIT(NOTMAIN); PRINTDBIT(LIB); /*XXX: MEMBER is defined, so CONCAT(OP_,MEMBER) gives OP_"%" */ case OP_MEMBER: if (DEBUG(TARG)) printf(".MEMBER "); break; PRINTDBIT(ARCHV); } } } /*- *----------------------------------------------------------------------- * TargPrintNode -- * print the contents of a node *----------------------------------------------------------------------- */ static int TargPrintNode (gnp, passp) ClientData gnp; ClientData passp; { GNode *gn = (GNode *) gnp; int pass = *(int *) passp; if (!OP_NOP(gn->type)) { printf("#\n"); if (gn == mainTarg) { printf("# *** MAIN TARGET ***\n"); } if (pass == 2) { if (gn->unmade) { printf("# %d unmade children\n", gn->unmade); } else { printf("# No unmade children\n"); } if (! (gn->type & (OP_JOIN|OP_USE|OP_USEBEFORE|OP_EXEC))) { if (gn->mtime != 0) { printf("# last modified %s: %s\n", Targ_FmtTime(gn->mtime), (gn->made == UNMADE ? "unmade" : (gn->made == MADE ? "made" : (gn->made == UPTODATE ? "up-to-date" : "error when made")))); } else if (gn->made != UNMADE) { printf("# non-existent (maybe): %s\n", (gn->made == MADE ? "made" : (gn->made == UPTODATE ? "up-to-date" : (gn->made == ERROR ? "error when made" : "aborted")))); } else { printf("# unmade\n"); } } if (!Lst_IsEmpty (gn->iParents)) { printf("# implicit parents: "); Lst_ForEach (gn->iParents, TargPrintName, (ClientData)0); fputc ('\n', stdout); } } if (!Lst_IsEmpty (gn->parents)) { printf("# parents: "); Lst_ForEach (gn->parents, TargPrintName, (ClientData)0); fputc ('\n', stdout); } printf("%-16s", gn->name); switch (gn->type & OP_OPMASK) { case OP_DEPENDS: printf(": "); break; case OP_FORCE: printf("! "); break; case OP_DOUBLEDEP: printf(":: "); break; } Targ_PrintType (gn->type); Lst_ForEach (gn->children, TargPrintName, (ClientData)0); fputc ('\n', stdout); Lst_ForEach (gn->commands, Targ_PrintCmd, (ClientData)0); printf("\n\n"); if (gn->type & OP_DOUBLEDEP) { Lst_ForEach (gn->cohorts, TargPrintNode, (ClientData)&pass); } } return (0); } /*- *----------------------------------------------------------------------- * TargPrintOnlySrc -- * Print only those targets that are just a source. * * Results: * 0. * * Side Effects: * The name of each file is printed preceded by #\t * *----------------------------------------------------------------------- */ static int TargPrintOnlySrc(gnp, dummy) ClientData gnp; ClientData dummy; { GNode *gn = (GNode *) gnp; if (OP_NOP(gn->type)) printf("#\t%s [%s]\n", gn->name, gn->path ? gn->path : gn->name); return (dummy ? 0 : 0); } /*- *----------------------------------------------------------------------- * Targ_PrintGraph -- * print the entire graph. heh heh * * Results: * none * * Side Effects: * lots o' output *----------------------------------------------------------------------- */ void Targ_PrintGraph (pass) int pass; /* Which pass this is. 1 => no processing * 2 => processing done */ { printf("#*** Input graph:\n"); Lst_ForEach (allTargets, TargPrintNode, (ClientData)&pass); printf("\n\n"); printf("#\n# Files that are only sources:\n"); Lst_ForEach (allTargets, TargPrintOnlySrc, (ClientData) 0); printf("#*** Global Variables:\n"); Var_Dump (VAR_GLOBAL); printf("#*** Command-line Variables:\n"); Var_Dump (VAR_CMD); printf("\n"); Dir_PrintDirectories(); printf("\n"); Suff_PrintAll(); } static int TargPropagateCohort (cgnp, pgnp) ClientData cgnp; ClientData pgnp; { GNode *cgn = (GNode *) cgnp; GNode *pgn = (GNode *) pgnp; cgn->type |= pgn->type & ~OP_OPMASK; return (0); } static int TargPropagateNode (gnp, junk) ClientData gnp; ClientData junk; { GNode *gn = (GNode *) gnp; if (gn->type & OP_DOUBLEDEP) Lst_ForEach (gn->cohorts, TargPropagateCohort, gnp); return (0); } void Targ_Propagate () { Lst_ForEach (allTargets, TargPropagateNode, (ClientData)0); }